D-Link AirPremier DWL-G680 Manual de usuario

Manual

D-Link AirPremier®

DWL-G680

High-Speed 802.11g

Building Networks for People

Wireless Notebook Adapter

Rev. A2

Contents

Package Contents ............................................................................... 3

Introduction ........................................................................................... 4

Features & Benefits............................................................................. 5

Wireless Basics ................................................................................... 6

Getting Started ..................................................................................... 9

Using the Configuration Utility ............................................................. 12

Networking Basics ............................................................................. 26

Troubleshooting .................................................................................. 44

Technical Specifications ..................................................................... 51

Technical Support .............................................................................. 53

Warranty............................................................................................. 54

Registration ....................................................................................... 57

Package Contents

System Requirements:

Windows XP/2000/ME/98SE



A laptop or notebook computer with an available 32-bit Cardbus

slot



At least 64 MB of memory and a 500 MHz processor



An 802.11g or 802.11b Access Point (for Infrastructure mode), or another

802.11g or 802.11b wireless adapter (for Ad-Hoc, Peer-to-Peer networking

mode).



Contents of Package:

D-Link AirPremier®

DWL-G680

High-Speed 2.4 GHz/802.11g Wireless Cardbus Adapter

Manual and Drivers on CD

Quick Installation Guide

If any of the above items are missing, please contact your reseller.



Introduction

The DWL-G680 has the newest, strongest, and most advanced security features available

today. When used with other 802.11 WPA/WPA2 (Wi-Fi Protected Access/Wi-Fi Protected

Access 2TM) and 802.1x compatible products in a network with a RADIUS server, the

security features include:

WPA/WPA2: Wi-Fi Protected Access/Wi-Fi Protected Access 2TM which authorizes

and identifies users based on a secret key that changes automatically at regular

intervals. WPA/WPA2 uses TKIP (Temporal Key Integrity Protocol) to change

the temporal key every 10,000 packets (a packet is a kind of message transmitted

over a network.) This ensures much greater security than the standard WEP

security. (By contrast, the older WEP encryption required the keys to be changed

manually.)

802.1x: Authentication which is a first line of defense against intrusion. In the

authentication process, the Authentication Server* verifies the identity of the

client attempting to connect to the network. Unfamiliar clients would be denied

access.

For home users that will not incorporate a RADIUS server in their network, the security

for the DWL-G680, used in conjunction with other WPA/WPA2-compatible 802.11

products, will still be much stronger than ever before. Utilizing the Pre Shared Key

mode of WPA/WPA2, the DWL-G680 will obtain a new security key every time it connects

to the 802.11 network. You only need to input your encryption information once in the

configuration menu. No longer will you have to manually input a new WEP key frequently

to ensure security. With the DWL-G680, you will automatically receive a new key every

time you connect, vastly increasing the safety of your communication.

* Not all servers can provide Authentication.

The D-Link AirPremier®DWL-G680 Wireless Cardbus Adapter is an 802.11g high-

performance, wireless adapter that supports high-powered wireless networking at home,

at work or in public places.

Unlike most network cards, the DWL-G680 provides data transfers at up to 108 Mbps.

The 802.11g standard is backwards compatible with 802.11b products.

Features & Benefits

Fully compliant with the 802.11b standard and interoperable with all

existing 802.11b compliant and 802.11g compliant devices

Operates in the 2.4GHz frequency range

Maximum reliability, throughput and connectivity with automatic data rate

switching

32-bit Cardbus Performance/Plug & Play Connectivity - The powerful 32-bit

Cardbus interface utilized by the DWL-G680 ensures optional performance in

transmitting a wireless signal within the loptop computer. Pluy and play when

used with other D-Link AirPlus Xtreme G products will automatically connect to

network out of the box.

Quick and Easy Installation- The DWL-G680 installs quickly and easily into a

standard Cardbus slot in a laptop computer. By following the simple steps out-

lined in the Quick Installation Guide, you can connect to an available wireless

network in a matter of seconds

Stronger Security than ever before with WPA/WPA2 - Wi-Fi Protected

Access/Wi-Fi Protected Access 2TM authorizes and identifies users based on

a secret key that changes automatically at regular intervals, for example:



TKIP (Temporal Key Integrity Protocol), in conjunction with a RADIUS

server, changes the temporal key every 10,000 packets, ensuring greater

security

Pre-Shared Key mode means that the home user, without a RADIUS

server, will obtain a new security key every time he or she connects to

the network, vastly improving the safety of communications on the net-

work



Extra Protection - 802.1x Authentication in conjunction with the RADIUS

server verifies the identity of wireless clients wishing to gain access to the

WLAN



Provides a measure of security for the information transmitted over a

wireless network with high data encryption at 64-, 128-, and 152-bit WEP



Supports Infrastructure networks via an access point and Peer-to-Peer

communication in Ad-Hoc mode



User-friendly configuration and diagnostic utilities

Five times faster - achieve data transfer speeds up to 108 Mbps; up to 5x

faster than conventional 802.11b networks, when used with other 802.11g

devices



Provides a simple and inexpensive way to connect your desktop com-

puter to a wireless network at home, at the office, or in public places

Wireless Basics

D-Link wireless products are based on industry standards to provide easy-to-use and

compatible high-speed wireless connectivity within your home, business or public access

wireless networks. D-Link wireless products will allow you access to the data you want,

when and where you want it. You will be able to enjoy the freedom that wireless networking

brings.

A Wireless Local Area Network (WLAN) is a computer network that transmits and receives

data with radio signals instead of wires. WLANs are used increasingly in both home and

office environments, and public areas such as airports, coffee shops and universities.

Innovative ways to utilize WLAN technology are helping people to work and communicate

more efficiently. Increased mobility and the absence of cabling and other fixed

infrastructure have proven to be beneficial for many users.

Wireless users can use the same applications they use on a wired network. Wireless

adapter cards used on laptop and desktop systems support the same protocols as

Ethernet adapter cards.

People use WLAN technology for many different purposes:

Mobility - Productivity increases when people have access to data in any location

within the operating range of the WLAN. Management decisions based on real-time

information can significantly improve worker efficiency.

Low Implementation Costs –WLANs are easy to set up, manage, change and

relocate. Networks that frequently change can benefit from WLANs ease of implementation.

WLANs can operate in locations where installation of wiring may be impractical.

Installation and Network Expansion -Installing a WLAN system can be fast

and easy and can eliminate the need to pull cable through walls and ceilings. Wireless

technology allows the network to go where wires cannot go - even outside the home or

office.

Scalability -WLANs can be configured in a variety of ways to meet the needs of

specific applications and installations. Configurations are easily changed and range

from peer-to-peer networks suitable for a small number of users to larger infrastructure

networks to accommodate hundreds or thousands of users, depending on the number of

wireless devices deployed.

Inexpensive Solution - Wireless network devices are as competitively priced as

conventional Ethernet network devices.

Wireless Basics (continued)

Standards-Based Technology

The DWL-G680 Wireless Cardbus Adapter utilizes the new 802.11g standard.

The IEEE 802.11g standard is an extension of the 802.11b standard. It increases the

data rate up to 54 Mbps within the 2.4GHz band, utilizing OFDM technology.

This means that in most environments, within the specified range of this device, you will

be able to transfer large files quickly or even watch a movie in MPEG format over your

network without noticeable delays. This technology works by transmitting high-speed

digital data over a radio wave utilizing OFDM (Orthogonal Frequency Division Multiplexing)

technology. OFDM works by splitting the radio signal into multiple smaller sub-signals

that are then transmitted simultaneously at different frequencies to the receiver. OFDM

reduces the amount of crosstalk (interference) in signal transmissions. The D-Link DWL-

G680 will automatically sense the best possible connection speed to ensure the greatest

speed and range possible.

802.11g offers the most advanced network security features available today, including:

WPA/WPA2 , 802.1x, TKIP, AES and Pre-Shared Key mode. These security features

are explained in more detail in the Introduction and the Features section of this manual.

The DWL-G680 is backwards compatible with 802.11b devices. This means that if you

have an existing 802.11b network, the devices in that network will be compatible with

802.11g devices at speeds up to 11Mbps in the 2.4GHz range.

The DWL-G680 is compatible with 802.11g and 802.11b wireless products, which include:

D-Link Air DWL-650,D-Link AirPlus DWL-650+,

D-Link AirPremier®DWL-G550

2.4GHz Wireless Cardbus Adapter used with laptop computers

D-Link Air DWL-520, D-Link AirPlus DWL-520+

2.4GHz Wireless PCI cards used with desktop computers

D-Link AirPlus DWL-900AP+, D-Link AirPlus Xtreme G DWL-2100AP

2.4GHz Wireless Access Points

D-Link AirPlus DI-614+, DI-714P+

2.4GHz Wireless Routers



Installation Considerations

The D-Link AirPremier®DWL-G680 lets you access your network using a wireless

connection from virtually anywhere within its operating range. Keep in mind, however,

that the number, thickness and location of walls, ceilings, or other objects that the

wireless signals must pass through, may limit the range. Typical ranges vary depending

on the types of materials and background RF (radio frequency) noise in your home or

business. The key to maximizing wireless range is to follow these basic guidelines:

Keep your product away (at least 3-6 feet or 1-2 meters) from electrical

devices or appliances that generate RF noise.

Keep the number of walls and ceilings between the DWL-G680 and other network

devices to a minimum - each wall or ceiling can reduce your DWL-G680

range from 3-90 feet (1-30 meters.) Position your devices so that the number of

walls or ceilings is minimized.

Be aware of the direct line between network devices. A wall that is 1.5 feet thick

(.5 meters), at a 45-degree angle appears to be almost 3 feet (1 meter) thick. At

a 2-degree angle it looks over 42 feet (14 meters) thick! Position devices so

that the signal will travel straight through a wall or ceiling (instead of at an

angle) for better reception.

Building materials can impede the wireless signal - a solid metal door or aluminum

studs may have a negative effect on range. Try to position wireless devices and

computers with wireless adapters so that the signal passes through drywall or

open doorways and not other materials.

Wireless Basics (continued)

LEDs

LED stands for Light-Emitting Diode.

Getting Started

With its default settings, the DWL-G680, when activated, will connect

with other D-Link AirPremier®products, right out of the box.

Activity:

A blinking light indicates data is being transmitted

Link:

A steady light indicates a connection to an access point

There are basically two modes of networking:

Infrastructure - using an Access Point or Router, such as

the DI-624

Ad-Hoc - directly connecting to another computer, for peer-to-

peer communication, using wireless network adapters on

each computer, such as two or more DWL-G680 wireless

network adapters

On the following pages we will show you an example of an Infrastructure Network

and an Ad-Hoc Network.

An Infrastructure network contains an Access Point or Router. The Infrastructure

Network example shown on the following page contains the following D-Link network

devices (your existing network may be comprised of other devices):



A wireless Router - D-Link AirPlus Xtreme G DI-624

A laptop computer with a wireless adapter -

D-Link AirPremier®DWL-G680, D-Link AirPlus Xtreme G

DWL-G650, or D-Link AirPlus DWL-G630

A Cable modem - D-Link DCM-201



Please remember that D-Link AirPremier®

wireless devices are

pre-configured to connect together, right out of the box, with their default settings.

Getting Started (continued)

For a typical wireless setup at home (as shown above), please do the following:

Setting up a Wireless Infrastructure Network

You will need broadband Internet access (a Cable or DSL-subscriber line into

your home or office).

Consult with your Cable or DSL provider for proper installation of the modem.

Connect the Cable or DSL modem to your broadband router (see the Quick

Installation Guide included with your router.)

If you are connecting a desktop computer to your networks, you can install the

D-Link AirPremier®DWL-G550 Wireless Cardbus Adapter into a computer. (See

the Quick Installation Guide included with the DWL-G550.)

Install the D-Link AirPremier®DWL-G680 Wireless Cardbus Adapter into a laptop

computer.

(See the Quick Installation Guide included with the DWL-G680.)

If you wish, you may connect a computer that is equipped with an Ethernet

network adapter (such as a DFE-530TX+) to the router also.

A RADIUS Server is optional. Connect a RADIUS Server to your network to use

all the features of WPA/WPA2. (Without a RADIUS Server you can still use the

WPA/WPA2 Pre-Shared Key mode.) RADIUS Authentication can also be

provided by another service provider over the Internet and remote to your network

site.

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